Chamonix Mont-Blanc
Auvergne-Rhône-Alpes, France
1,035–3,275 m · 2,240 m vertical · Official site
Current base depth
Modelled natural snowpackMid-mountain
0 cm
- Summit3,275 m0 cmNo snow base
- Mid2,155 m0 cmNo snow base
- Base1,035 m0 cmNo snow base
Snowfall forecast
Summit
3,275 m- 24 h
- 0 cm
- 7 days
- 5 cm
- 14 days
- 13 cm
Models range, 7 days: 4–5 cm
Mid
2,155 m- 24 h
- 0 cm
- 7 days
- 0 cm
- 14 days
- 1 cm
Models range, 7 days: 0–0 cm
Base
1,035 m- 24 h
- 0 cm
- 7 days
- 0 cm
- 14 days
- 0 cm
Models range, 7 days: 0–0 cm
Updated 30 Sept, 07:38 CEST. Consensus of ECMWF IFS, NOAA GFS/HRRR, DWD ICON, Canada GEM.
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This season vs a typical season
Modelled natural snowpack- Summit
- 23 cm
- Mid
- 0 cm
- Base
- 0 cm
Season snowfall to date
How this is estimated
Snow depth is modelled by replaying this season's weather hour by hour — snowfall, melt, sunshine and settling — then checked against government snow stations. The typical line is the same model averaged over recent seasons, so the comparison is like-for-like. Resorts report depth on packed, groomed pistes, so their figure is usually lower, especially on high, wind-exposed summits.
Day by day
Freezing level and temperatures are for the summit.
| Day | Summit | Mid | Base | Freezing lvl Temp |
|---|---|---|---|---|
| Today30 Sept | — | — | — | 3,760 m0° / 7°C |
| Thu1 Oct | 3 cm | — | — | 3,490 m0° / 2°C |
| Fri2 Oct | — | — | — | 3,430 m-2° / 4°C |
| Sat3 Oct | <1 cm | — | — | 3,400 m-2° / 4°C |
| Sun4 Oct | — | — | — | 3,380 m-3° / 4°C |
| Mon5 Oct | — | — | — | 3,460 m-3° / 5°C |
| Tue6 Oct | — | — | — | 3,400 m-4° / 6°C |
| Wed7 Oct | — | — | — | 3,270 m-3° / 4°C |
| Thu8 Oct | — | — | — | 3,110 m-4° / 2°C |
| Fri9 Oct | 1 cm | <1 cm | — | 3,210 m-5° / 2°C |
| Sat10 Oct | — | — | — | 3,250 m-7° / 2°C |
| Sun11 Oct | — | — | — | 3,010 m-8° / 1°C |
| Mon12 Oct | — | — | — | 2,160 m-10° / -3°C |
| Tue13 Oct | — | — | — | 2,180 m-11° / -1°C |
Days 8–14 are an extended outlook: good for spotting a storm cycle, not for exact totals.
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Nearby resorts
Summit snowfall, next 7 days
How this forecast works
Snow Maps blends four global weather models and works out the rain/snow line hour by hour, then calculates snowfall separately at the base (1035 m), mid-mountain (2155 m) and summit (3275 m) of Chamonix Mont-Blanc. Colder, higher terrain gets a lighter, deeper snow ratio. The range shows how far the individual models disagree: a wide range means low confidence.
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